Index: openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl,v
diff -u -N -r1.108.2.13 -r1.108.2.14
--- openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl	12 Nov 2020 14:56:36 -0000	1.108.2.13
+++ openacs-4/packages/acs-mail-lite/tcl/acs-mail-lite-procs.tcl	15 Dec 2020 11:08:34 -0000	1.108.2.14
@@ -700,6 +700,12 @@
             set delivery_mode [dict get $deliveryDict EmailDeliveryMode]
         }
 
+        foreach w $delivery_mode {
+            if {$w ni {smtp nssmtpd default log redirect ignore}} {
+                ns_log warning "unexpected entry '$w' in parameter EmailDeliveryMode (ignored)"
+            }
+        }
+
         if {"nssmtpd" in $delivery_mode} {
             #
             # Filter the word "nssmtpd" from the EmailDeliveryMode and
@@ -805,7 +811,7 @@
             set fullMailMessage [mime::buildmessage $tokens]
 
             #
-            # Call "smtpd send" from the NaviServer nssmtpd module.
+            # Call "ns_smtpd send" from the NaviServer nssmtpd module.
             # When the last two arguments are not provided, the
             # command uses host and port from the configuration
             # section of the nssmtpd module.